Patents by Inventor Yoon-Sang Kwon

Yoon-Sang Kwon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8574367
    Abstract: In an evaporation source, a separable heater is used when an organic thin film is formed on a substrate in order to realize full-colors so that it is possible to correspond to crucibles of various capacities. The evaporation source comprises a crucible in which an organic material which is an organic thin film material is accommodated, and the crucible includes a heating unit and at least one spray nozzle for spraying the organic material onto a substrate. In the heating unit, a heater divided into at least two parts is provided on the external surface of the crucible at uniform intervals, and the heaters are separately disposed with respect to each other, but are connected to each other by connecting members. Therefore, it is not necessary to perform an additional design whenever the capacity of the crucible is changed, it is not necessary to exchange the evaporation source, and it is possible to reduce cost and to improve repairing ability.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: November 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seuk Hwan Park, Kyung Hoon Chung, Yoon Sang Kwon, Kyong Tae Yu, Hyung Min Kim
  • Patent number: 8123863
    Abstract: An evaporation apparatus is capable of preventing a sag phenomenon in a substrate. The evaporation apparatus includes a substrate supporting unit. The substrate supporting unit includes a substrate supporter for supporting side walls of a substrate in a chamber toward the same direction as an intake direction of the substrate entering the chamber; and a substrate-aiding supporter for supporting other side walls of the substrate that are not supported by the substrate supporter.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: February 28, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Kyung-Hoon Chung, Seuk-Hwan Park, Yoon-Sang Kwon
  • Publication number: 20090081364
    Abstract: An evaporation apparatus is capable of preventing a sag phenomenon in a substrate. The evaporation apparatus includes a substrate supporting unit. The substrate supporting unit includes a substrate supporter for supporting side walls of a substrate in a chamber toward the same direction as an intake direction of the substrate entering the chamber; and a substrate-aiding supporter for supporting other side walls of the substrate that are not supported by the substrate supporter.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 26, 2009
    Inventors: Kyung-Hoon Chung, Seuk-Hwan Park, Yoon-Sang Kwon
  • Publication number: 20070283890
    Abstract: In an evaporation source, a separable heater is used when an organic thin film is formed on a substrate in order to realize full-colors so that it is possible to correspond to crucibles of various capacities. The evaporation source comprises a crucible in which an organic material which is an organic thin film material is accommodated, and the crucible includes a heating unit and at least one spray nozzle for spraying the organic material onto a substrate. In the heating unit, a heater divided into at least two parts is provided on the external surface of the crucible at uniform intervals, and the heaters are separately disposed with respect to each other, but are connected to each other by connecting members. Therefore, it is not necessary to perform an additional design whenever the capacity of the crucible is changed, it is not necessary to exchange the evaporation source, and it is possible to reduce cost and to improve repairing ability.
    Type: Application
    Filed: March 21, 2007
    Publication date: December 13, 2007
    Inventors: Seuk Hwan Park, Kyung Hoon Chung, Yoon Sang Kwon, Kyong Tae Yu, Hyung Min Kim